Oahu East Side · Honolulu · Hawaii
Castles Surf Report & Forecast, Oahu East Side, Hawaii
Castles, Oahu East Side, Hawaii: 4–5 ft faces (2 ft Hawaiian scale), head high, at 10 am HST on Monday, Nov 9, rated Poor. The main swell is 7.6 ft at 8 seconds from the east-northeast, with a 17 mph onshore wind from the east, gusting 24 mph. Water is about 79°F, so a rashguard is enough; the next high tide is 1.3 ft at 1:18 pm.
4–5 ft
2 ft Hawaiian scale
- Swell
- 7.6 ft · 8 s · ENEplus 3.5 ft · 12 s · N
- Wind
- 17 mph (E), gusts 24onshore
- Tide
- 1.0 ft risinghigh 1.3 ft at 1:18 pm
- Water
- 79°Frashguard
- Air
- 77°Ffeels like 71°F
- Sun
- rise 6:38 amset 5:51 pm
Castles surf today and tomorrow
Best-rated hour today at Castles: 5 pm, Poor, on a falling low tide.
Blue band: surf face height from the low end to set waves; dotted: occasional larger sets. Grey line: tide, in feet on the right scale. Colour strip: the hourly rating. Arrows: wind direction and strength, teal when offshore, orange when onshore.
Best-rated hour tomorrow at Castles: 6 am, Poor, on a falling high tide.
Hour by hour as a table, today and tomorrow
| Time | Surf | Rating | Wind | Tide |
|---|---|---|---|---|
| 6 am | 4–5 ft | Poor | 17 mph onshore (E), gusts 25 | 1.8 ft |
| 7 am | 4–5 ft | Poor | 17 mph onshore (E), gusts 24 | 1.4 ft |
| 8 am | 4–5 ft | Poor | 17 mph onshore (E), gusts 24 | 1.1 ft |
| 9 am | 4 ft | Poor | 17 mph onshore (E), gusts 24 | 1.0 ft |
| 10 amnow | 4 ft | Poor | 17 mph onshore (E), gusts 24 | 1.0 ft |
| 11 am | 4 ft | Poor | 17 mph onshore (E), gusts 24 | 1.1 ft |
| 12 pm | 5 ft | Poor | 16 mph onshore (ENE), gusts 23 | 1.2 ft |
| 1 pm | 4 ft | Poor | 15 mph onshore (ENE), gusts 21 | 1.3 ft |
| 2 pm | 4 ft | Poor | 16 mph onshore (ENE), gusts 23 | 1.3 ft |
| 3 pm | 4 ft | Poor | 16 mph onshore (ENE), gusts 23 | 1.1 ft |
| 4 pm | 3–4 ft | Poor | 15 mph onshore (ENE), gusts 21 | 0.8 ft |
| 5 pm | 4 ft | Poor | 14 mph onshore (ENE), gusts 20 | 0.5 ft |
| 6 pm | 4 ft | Poor | 15 mph onshore (ENE), gusts 21 | 0.1 ft |
| Time | Surf | Rating | Wind | Tide |
|---|---|---|---|---|
| 6 am | 4 ft | Poor | 13 mph onshore (ENE), gusts 18 | 1.9 ft |
| 7 am | 4 ft | Poor | 14 mph onshore (ENE), gusts 19 | 1.6 ft |
| 8 am | 4 ft | Poor | 14 mph onshore (ENE), gusts 19 | 1.3 ft |
| 9 am | 3–4 ft | Poor | 15 mph onshore (ENE), gusts 21 | 1.1 ft |
| 10 am | 4 ft | Poor | 15 mph onshore (ENE), gusts 21 | 1.0 ft |
| 11 am | 3–4 ft | Poor | 15 mph onshore (ENE), gusts 21 | 1.0 ft |
| 12 pm | 3–4 ft | Poor | 16 mph onshore (NE), gusts 22 | 1.1 ft |
| 1 pm | 4 ft | Poor | 16 mph onshore (ENE), gusts 22 | 1.2 ft |
| 2 pm | 4 ft | Poor | 16 mph onshore (ENE), gusts 21 | 1.2 ft |
| 3 pm | 3–4 ft | Poor | 14 mph onshore (ENE), gusts 19 | 1.1 ft |
| 4 pm | 3–4 ft | Poor | 13 mph onshore (ENE), gusts 19 | 0.9 ft |
| 5 pm | 4 ft | Poor | 13 mph onshore (ENE), gusts 20 | 0.6 ft |
| 6 pm | 3–4 ft | Poor | 14 mph onshore (ENE), gusts 21 | 0.2 ft |
Castles waves today: sets, lulls and how they break
At 10 am, sets at Castles arrive about every minute with about 2 waves each, and the waves are mostly barreling and soft.
- Set waves
- about 4.7 ft faces
- Waves per set
- about 2
- Sets
- every minute or so, each lasting about 11 s
- Lulls
- about 35 s between breaking waves
- How they break
- Barrelingwhich means the lip pitches out and can throw a barrel
- Shape
- Softwhich means mostly mellow, with occasional steeper sections
- Breaking
- 77% of waves stand up and break where surfers sitThe rest roll through.
- Along-shore current
- moderate, about 0.6 mphThis is not a rip current forecast. For rip current risk, see the National Weather Service.
Castles surf this weekend and the next 10 days
Next 10 days at Castles: the biggest day is Thursday, Nov 12 at 4–6 ft, and the best-rated day is Tuesday, Nov 10 (Poor). This weekend: Saturday, Nov 14, 4–6 ft and Poor; Sunday, Nov 15, 4–6 ft and Poor.
Thu, Nov 19 – Tue, Nov 24
Days 11–16 for Castles are in the Current app with a Premium subscription.
Bars: surf face height from the low end to set waves, by day. Colour strip: the day's best rating. Arrows: main swell direction. Shaded: this weekend.
The 10-day forecast as a table, with swell and wind
| Day | Surf | Rating | Main swell | Wind am | Wind pm | Best time |
|---|---|---|---|---|---|---|
| Mon, Nov 9 | 3–5 ft | Poor | 7.7 ft · 7 s · ENE | 17 mph onshore (E), gusts 24 | 16 mph onshore (ENE), gusts 23 | 5 pm |
| Tue, Nov 10 | 3–4 ft | Poor | 6.4 ft · 8 s · ENE | 14 mph onshore (ENE), gusts 19 | 16 mph onshore (ENE), gusts 21 | 6 am |
| Wed, Nov 11 | 4–6 ft | Poor | 6.6 ft · 7 s · ENE | 17 mph onshore (ENE), gusts 26 | 19 mph onshore (ENE), gusts 29 | 1 pm |
| Thu, Nov 12 | 4–6 ft | Poor | 7.7 ft · 8 s · ENE | 18 mph onshore (ENE), gusts 29 | 18 mph onshore (ENE), gusts 30 | 9 am |
| Fri, Nov 13 | 4–6 ft | Poor | 8.8 ft · 8 s · ENE | 17 mph onshore (ENE), gusts 33 | 17 mph onshore (ENE), gusts 34 | 8 am |
| Sat, Nov 14 | 4–6 ft | Poor | 6.8 ft · 8 s · ENE | 15 mph onshore (ENE), gusts 31 | 17 mph onshore (ENE), gusts 34 | 11 am |
| Sun, Nov 15 | 4–6 ft | Poor | 8.2 ft · 8 s · ENE | 19 mph onshore (ENE), gusts 33 | 18 mph onshore (ENE), gusts 31 | 2 pm |
| Mon, Nov 16 | 4–6 ft | Poor | 7.7 ft · 8 s · ENE | 15 mph onshore (ENE), gusts 28 | 16 mph onshore (E), gusts 28 | 8 am |
| Tue, Nov 17 | 4–5 ft | Poor | — | 21 mph onshore (E), gusts 26 | 20 mph onshore (E) | 5 pm |
| Wed, Nov 18 | 4–6 ft | Poor | — | 15 mph onshore (ESE) | 17 mph onshore (E) | 11 am |
| Thu, Nov 19 – Tue, Nov 24 | Days 11–16 for Castles are in the Current app with a Premium subscription. Get the app | |||||
Castles tide chart and tide times
Tides at Castles today, Monday, Nov 9: high 2.5 ft at 2:53 am, low 1.0 ft at 9:28 am, high 1.3 ft at 1:18 pm and low -0.2 ft at 7:51 pm. At 10 am the tide is 1.0 ft and rising.
Castles tide chart, November 2026
| Day | Tides |
|---|---|
| Mon, Nov 9 | High 2.5 ft at 2:53 amLow 1.0 ft at 9:28 amHigh 1.3 ft at 1:18 pmLow -0.2 ft at 7:51 pm |
| Tue, Nov 10 | High 2.5 ft at 3:26 amLow 1.0 ft at 10:12 amHigh 1.2 ft at 1:37 pmLow -0.2 ft at 8:18 pm |
| Wed, Nov 11 | High 2.4 ft at 4:05 amLow 1.0 ft at 11:11 amHigh 1.1 ft at 1:41 pmLow -0.2 ft at 8:44 pm |
| Thu, Nov 12 | High 2.3 ft at 4:44 amLow -0.1 ft at 9:10 pm |
| Fri, Nov 13 | High 2.2 ft at 5:30 amLow 0.1 ft at 9:39 pm |
| Sat, Nov 14 | High 2.1 ft at 6:22 amLow 0.3 ft at 10:05 pm |
| Sun, Nov 15 | High 2.1 ft at 7:16 amLow 0.5 ft at 10:38 pm |
| Mon, Nov 16 | High 2.0 ft at 8:12 amLow 0.7 ft at 5:58 pmHigh 0.8 ft at 8:45 pmLow 0.8 ft at 11:35 pm |
| Tue, Nov 17 | High 1.9 ft at 9 am |
Tide predictions, not observations. Heights in feet above MLLW.
Castles water temperature
The water temperature at Castles is about 79°F on Monday, Nov 9. With the air feeling like 71°F and a 17 mph wind, a rashguard is enough. Over the next week the water stays near 79°F.
Water temperature is a forecast for the water at this spot, not a buoy reading. The wetsuit suggestion uses Billabong's wetsuit temperature scale, adjusted for air temperature and wind.
Surf spots near Castles
- Kailua Beach1.0 mi SSE · 4–5 ft · Poor
- North Beach2.4 mi N · 5–6 ft · Poor to Fair
- Lanikai2.6 mi SE · 5–6 ft · Poor
- Pyramid Rock2.9 mi NNW · 4–5 ft · Poor
- Bellows4.8 mi SSE · 4–5 ft · Poor
- Waimanalo6.3 mi SSE · 5–6 ft · Poor
Rated right now. The Current app animates the surf itself on a live map of the whole coast. See the app →
About Castles
Castles is a reef break on the East Side of Oahu, Hawaii, facing east.
Follow Castles in the Current app
The first 10 days are free, and Premium adds days 11–16.
Forecasts are estimates. Never rely on them for safety. For rip current risk and beach hazards, check the National Weather Service. Forecasts from Current's novel physics simulation. No AI. No black boxes. Ocean and weather data: NOAA (U.S. government data). NOAA does not endorse this site.